1959220 has 12 divisors (see below), whose sum is σ = 4114404. Its totient is φ = 783680.

The previous prime is 1959197. The next prime is 1959227. The reversal of 1959220 is 229591.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 1387684 = 756^2 + 1178^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48961 + ... + 49000.

It is an arithmetic number, because the mean of its divisors is an integer number (342867).

2^1959220 is an apocalyptic number.

1959220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1959220 is an abundant number, since it is smaller than the sum of its proper divisors (2155184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1959220 is a wasteful number, since it uses less digits than its factorization.

1959220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97970 (or 97968 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 1959220 is about 1399.7214008509. The cubic root of 1959220 is about 125.1298916452.

The spelling of 1959220 in words is "one million, nine hundred fifty-nine thousand, two hundred twenty".